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The immediate effects of this brilliant success were immense. Many of the Spanish tribes deserted the Carthaginian cause; and when Scipio took the field in the following year (B.C. 209) Mandonius and Indibilis, two of the most powerful and hitherto the most faithful supporters of Carthage, quitted the camp of Hasdrubal Barca, and awaited the arrival of the Roman commander. Hasdrubal was encamped in a strong position near the town of Baecula, in the upper valley of the Baetis (Guadalquiver), where he was attacked and defeated by Scipio. He succeeded, however, in making good his retreat, and retired into northern Spain. He subsequently crossed the Pyrenees, and marched into Italy to the assistance of his brother Hannibal, as already narrated.

The two years which followed John's return from Ireland, from August, 1210 to August 1212, form the period of his highest power. No attempt at resistance to his will anywhere disturbed the peace of England. Llewelyn, Prince of north Wales, husband of John's natural daughter Joanna, involved in border warfare with the Earl of Chester, was not willing to yield to the authority of the king, but two expeditions against him in 1211 forced him to make complete submission. A contemporary annalist remarks with truth that none of John's predecessors exercised so great an authority over Scotland, Wales, or Ireland as he, and we may add that none exercised a greater over England. The kingdom was almost in a state of blockade, and not only was unauthorized entrance into the country forbidden, but departure from it as well, except as the king desired. During these two years John's relations with the Church troubled him but little. Negotiations were kept up as before, but they led to nothing. On his return from the Welsh campaign the king met representatives of the pope at Northampton, one of whom was the Roman subdeacon Pandulf, whom John met later in a different mood. We have no entirely trustworthy account of the interview, but it was found impossible to agree upon the terms of any treaty which would bring the conflict to an end. The pope demanded a promise of complete obedience from John on all the questions that had caused the trouble, and restoration to the clergy of all their confiscated revenues, and to one or both of these demands the king refused to yield. Now it is that we begin to hear of threats of further sentences to be issued by the pope against John, or actually issued, releasing his subjects from their allegiance and declaring the king incapable of ruling, but if any step of that kind was taken, it had for the present no effect. The Christmas feast was kept as usual at Windsor, and in Lent of the next year John knighted young Alexander of Scotland, whose father had sent him to London to be married as his liege lord might please, though "without disparagement."

To find the weight of metal in a given substance:--_Multiply the standard by the number of c.c. used and divide by 100._ For example: a piece of zinc was dissolved and the gas evolved measured 73.9 c.c. Then by the rule, 0.2955×73.9/100 should give the weight of the piece of zinc. This gives 0.2184 gram. To find the percentage of metal in a given substance:--_Multiply the standard by the number of c.c. used and divide by the weight of substance taken._ For example: if 2 grams of a mineral were taken, and if on titrating with the permanganate solution (standard 1.008) 60.4 c.c. were required, then (1.008×60.4)/2 = 30.44. This is the percentage. If the standard is exactly 1 gram, and 1 gram of ore is always taken, these calculations become very simple. The "c.c." used give at once the percentage, or divided by 100 give the weight of metal. If it is desired to have a solution with a standard exactly 1.0 gram, it is best first to make one rather stronger than this, and then to standardise carefully. Divide 1000 by the standard thus obtained and the result will be the number of c.c. which must be taken and be diluted with water to 1 litre. For example: suppose the standard is 1.008, then 1000/1.008 gives 992, and if 992 c.c. be taken and diluted with water to 1000 c.c. a solution of the desired strength will be obtained. The standard of this should be confirmed. A simpler calculation for the same purpose is to multiply the standard by 1000; this will give the number of c.c. to which 1 litre of the solution should be diluted. In the above example a litre should be diluted to 1008 c.c.

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